// Loads a single table, returns pointer to table in memory.
public static void *LoadSingleTable(tMetaData *pThis, tRVA *pRVA, int tableID, void **ppTable)
{
int numRows = (int)pThis->tables.numRows[tableID];
int rowLen = tableRowSize[tableID];
int i, row;
/*char**/ byte *pDef = tableDefs[tableID];
int defLen = (int)S.strlen(pDef);
void * pRet;
byte * pSource = (byte *)*ppTable;
byte * pDest;
uint v = 0;
SIZE_T p = 0;
// Allocate memory for destination table
pRet = Mem.malloc((SIZE_T)(numRows * rowLen));
pDest = (byte *)pRet;
// Load table
int srcLen = 0;
for (row = 0; row < numRows; row++)
{
byte *pSrcStart = pSource;
for (i = 0; i < defLen; i += 2)
{
byte d = pDef[i];
if (d < MAX_TABLES)
{
if (pThis->tables.numRows[d] < 0x10000)
{
// Use 16-bit offset
v = GetU16(pSource);
pSource += 2;
}
else
{
// Use 32-bit offset
v = GetU32(pSource);
pSource += 4;
}
v |= (uint)d << 24;
}
else
{
switch ((char)d)
{
case 'c': // 8-bit value
v = *(byte *)pSource;
pSource++;
break;
case 's': // 16-bit short
v = GetU16(pSource);
pSource += 2;
break;
case 'i': // 32-bit int
v = GetU32(pSource);
pSource += 4;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case ':':
case ';':
case '<':
{
int ofs = pDef[i] - '0';
/*char*/ byte *pCoding = codedTags[ofs];
int tagBits = codedTagBits[ofs];
byte tag = (byte)(*pSource & ((1 << tagBits) - 1));
int idxIntoTableID = pCoding[tag]; // The actual table index that we're looking for
if (idxIntoTableID < 0 || idxIntoTableID > MAX_TABLES)
{
Sys.Crash("Error: Bad table index: 0x%02x\n", idxIntoTableID);
}
if (pThis->tables.codedIndex32Bit[ofs] != 0)
{
// Use 32-bit number
v = GetU32(pSource) >> tagBits;
pSource += 4;
}
else
{
// Use 16-bit number
v = GetU16(pSource) >> tagBits;
pSource += 2;
}
v |= (uint)idxIntoTableID << 24;
}
break;
case 'S': // index into string heap
if (pThis->index32BitString != 0)
{
v = GetU32(pSource);
pSource += 4;
}
else
{
v = GetU16(pSource);
pSource += 2;
}
p = (PTR)(pThis->strings.pStart + v);
// NOTE: Quick way to validate metadata loading, check if all strings are valid!
if (S.isvalidstr((byte *)p) == 0)
{
Sys.Crash("Invalid string %s", (PTR)p);
}
break;
case 'G': // index into GUID heap
if (pThis->index32BitGUID != 0)
{
v = GetU32(pSource);
pSource += 4;
}
else
{
v = GetU16(pSource);
pSource += 2;
}
p = (PTR)(pThis->GUIDs.pGUID1 + ((v - 1) * 16));
break;
case 'B': // index into BLOB heap
if (pThis->index32BitBlob != 0)
{
v = GetU32(pSource);
pSource += 4;
}
else
{
v = GetU16(pSource);
pSource += 2;
}
p = (PTR)(pThis->blobs.pStart + v);
break;
case '^': // RVA to convert to pointer
v = GetU32(pSource);
pSource += 4;
p = (PTR)RVA.FindData(pRVA, v);
break;
case 'm': // Pointer to this metadata
p = (PTR)pThis;
break;
case 'l': // Is this the last table entry?
v = (row == numRows - 1) ? (uint)1 : (uint)0;
break;
case 'I': // Original table index
v = MetaData.MAKE_TABLE_INDEX((uint)tableID, (uint)(row + 1));
break;
case 'x': // Nothing, use 0
v = 0;
p = 0;
break;
default:
Sys.Crash("Cannot handle MetaData source definition character '%c' (0x%02X)\n", d, d);
break;
}
}
switch ((char)pDef[i + 1])
{
case '*':
*(SIZE_T *)pDest = p;
pDest += sizeof(SIZE_T);
break;
case 'i':
*(uint *)pDest = v;
pDest += 4;
break;
case 's':
*(ushort *)pDest = (ushort)v;
pDest += 2;
break;
case 'c':
*(byte *)pDest = (byte)v;
pDest++;
break;
case 'x':
// Do nothing
break;
default:
Sys.Crash("Cannot handle MetaData destination definition character '%c'\n", pDef[i + 1]);
break;
}
}
if (srcLen == 0)
{
srcLen = (int)(pSource - pSrcStart);
}
}
Sys.log_f(1, "Loaded MetaData table 0x%02X; %d rows %d len\n", tableID, numRows, srcLen);
// Update the parameter to the position after this table
*ppTable = pSource;
// Return new table information
return(pRet);
}
private static tCLIFile *LoadPEFile(byte[] image)
{
tCLIFile *pRet = ((tCLIFile *)Mem.malloc((SIZE_T)sizeof(tCLIFile)));
System.Runtime.InteropServices.GCHandle handle = System.Runtime.InteropServices.GCHandle.Alloc(image, GCHandleType.Pinned);
byte *pData = (byte *)handle.AddrOfPinnedObject();
byte *pMSDOSHeader = (byte *)&(((byte *)pData)[0]);
byte *pPEHeader;
byte *pPEOptionalHeader;
byte *pPESectionHeaders;
byte *pCLIHeader;
byte *pRawMetaData;
int i;
uint lfanew;
ushort machine;
int numSections;
//uint imageBase;
//int fileAlignment;
uint cliHeaderRVA;
//uint cliHeaderSize;
uint metaDataRVA;
//uint metaDataSize;
tMetaData *pMetaData;
pRet->pRVA = RVA.New();
pRet->gcHandle = (PTR)(System.IntPtr)handle;
pRet->pMetaData = pMetaData = MetaData.New();
lfanew = *(uint *)&(pMSDOSHeader[0x3c]);
pPEHeader = pMSDOSHeader + lfanew + 4;
pPEOptionalHeader = pPEHeader + 20;
pPESectionHeaders = pPEOptionalHeader + 224;
machine = *(ushort *)&(pPEHeader[0]);
if (machine != DOT_NET_MACHINE)
{
return(null);
}
numSections = *(ushort *)&(pPEHeader[2]);
//imageBase = *(uint*)&(pPEOptionalHeader[28]);
//fileAlignment = *(int*)&(pPEOptionalHeader[36]);
for (i = 0; i < numSections; i++)
{
byte *pSection = pPESectionHeaders + i * 40;
RVA.Create(pRet->pRVA, pData, pSection);
}
cliHeaderRVA = *(uint *)&(pPEOptionalHeader[208]);
//cliHeaderSize = *(uint*)&(pPEOptionalHeader[212]);
pCLIHeader = (byte *)RVA.FindData(pRet->pRVA, cliHeaderRVA);
metaDataRVA = *(uint *)&(pCLIHeader[8]);
//metaDataSize = *(uint*)&(pCLIHeader[12]);
pRet->entryPoint = *(uint *)&(pCLIHeader[20]);
pRawMetaData = (byte *)RVA.FindData(pRet->pRVA, metaDataRVA);
// Load all metadata
{
uint versionLen = *(uint *)&(pRawMetaData[12]);
uint ofs, numberOfStreams;
void *pTableStream = null;
uint tableStreamSize = 0;
pRet->pVersion = &(pRawMetaData[16]);
Sys.log_f(1, "CLI version: %s\n", (PTR)pRet->pVersion);
ofs = 16 + versionLen;
numberOfStreams = *(ushort *)&(pRawMetaData[ofs + 2]);
ofs += 4;
for (i = 0; i < (int)numberOfStreams; i++)
{
uint streamOffset = *(uint *)&pRawMetaData[ofs];
uint streamSize = *(uint *)&pRawMetaData[ofs + 4];
byte *pStreamName = &pRawMetaData[ofs + 8];
void *pStream = pRawMetaData + streamOffset;
ofs += (uint)((S.strlen(pStreamName) + 4) & (~0x3)) + 8;
if (S.strcasecmp(pStreamName, "#Strings") == 0)
{
MetaData.LoadStrings(pMetaData, pStream, streamSize);
}
else if (S.strcasecmp(pStreamName, "#US") == 0)
{
MetaData.LoadUserStrings(pMetaData, pStream, streamSize);
}
else if (S.strcasecmp(pStreamName, "#Blob") == 0)
{
MetaData.LoadBlobs(pMetaData, pStream, streamSize);
}
else if (S.strcasecmp(pStreamName, "#GUID") == 0)
{
MetaData.LoadGUIDs(pMetaData, pStream, streamSize);
}
else if (S.strcasecmp(pStreamName, "#~") == 0)
{
pTableStream = pStream;
tableStreamSize = streamSize;
}
}
// Must load tables last
if (pTableStream != null)
{
MetaData.LoadTables(pMetaData, pRet->pRVA, pTableStream, (uint)tableStreamSize);
}
}
// Mark all generic definition type and methods as such
for (i = (int)pMetaData->tables.numRows[MetaDataTable.MD_TABLE_GENERICPARAM]; i > 0; i--)
{
tMD_GenericParam * pGenericParam;
/*IDX_TABLE*/ uint ownerIdx;
pGenericParam = (tMD_GenericParam *)MetaData.GetTableRow
(pMetaData, MetaData.MAKE_TABLE_INDEX(MetaDataTable.MD_TABLE_GENERICPARAM, (uint)i));
ownerIdx = pGenericParam->owner;
switch (MetaData.TABLE_ID(ownerIdx))
{
case MetaDataTable.MD_TABLE_TYPEDEF:
{
tMD_TypeDef *pTypeDef = (tMD_TypeDef *)MetaData.GetTableRow(pMetaData, ownerIdx);
pTypeDef->isGenericDefinition = 1;
}
break;
case MetaDataTable.MD_TABLE_METHODDEF:
{
tMD_MethodDef *pMethodDef = (tMD_MethodDef *)MetaData.GetTableRow(pMetaData, ownerIdx);
pMethodDef->isGenericDefinition = 1;
}
break;
default:
Sys.Crash("Wrong generic parameter owner: 0x%08x", ownerIdx);
break;
}
}
// Mark all nested classes as such
for (i = (int)pMetaData->tables.numRows[MetaDataTable.MD_TABLE_NESTEDCLASS]; i > 0; i--)
{
tMD_NestedClass *pNested;
tMD_TypeDef * pParent;
tMD_TypeDef * pChild;
pNested = (tMD_NestedClass *)MetaData.GetTableRow(pMetaData, MetaData.MAKE_TABLE_INDEX(MetaDataTable.MD_TABLE_NESTEDCLASS, (uint)i));
pParent = (tMD_TypeDef *)MetaData.GetTableRow(pMetaData, pNested->enclosingClass);
pChild = (tMD_TypeDef *)MetaData.GetTableRow(pMetaData, pNested->nestedClass);
pChild->pNestedIn = pParent;
}
return(pRet);
}
